[Objective]To investigate the clinical efficacy of Lando® double-layer artificial dermis used for repair of finger tip defect complicated with bone exposed.[Methods]From January 2020 to December 2022,30 patients(30 fingers)had double-layer artificial der-mis with pressure dressing used after debridement to repair the finger tip defect complicated with bone exposed.The compression suture kit was removed 7～10 days after surgery,the sutures were removed 3 weeks after surgery,while the surface silicone film over double layer arti-ficial dermis was removed 4 weeks after surgery to allow the wound to be naturally epithelialized.The appearance of wound healing and functional recovery were observed,and the curative effect was evaluated.[Results]Of the 30 patients,27 patients got wound healing in one stage,2 patients had a part of the wound remained without bone exposure,and got wound healed after dressing change,whereas one patient remained a part of the tendon exposure after surgery,and had the tendon healed after revision double-layer artificial dermis implantation.All the patients were followed up for more than 6 months,with the mean time of natural epithelialization of(60.1±8.8)days.After the wound healed,the finger belly was well-stacked with good color and proper skin sensation.Compared with that 3 months after surgery,the average two-point discrimination was significantly improved at 6 months after surgery[(3.8±1.1)mm,(2.5±0.9)mm,P＜0.001].[Conclusion]This double-layer artificial dermis used to repair of finger tip defect with bone exposed in one stage is simple and effective technique without do-nor area damage.
artificial dermisfinger tip defectbones exposurenatural epithelialization
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